Construction of the Gunnell Gold Company mill and mine in Black Hawk, Gilpin County, Colorado, later used as the Colorado Central railroad station. Shows stone building and lumber.
Smoke rises from a smokestack at what is identified as the Blackhawk Company Stamp Mill on Selak Street in Black Hawk (Blackhawk, Gilpin County), Colorado. Brick and frame mill buildings are beside stacks of wood and ore piles. Shows the frame...